Fix missing EVP_CIPHER_CTX initialization

Signed-off-by: Marcus Meissner <marcusmeissner@users.sourceforge.net>
Signed-off-by: Hon Ching (Vicky) Lo <honclo@linux.vnet.ibm.com>

Author: Hon Ching(Vicky) Lo

lib/tpm_unseal.c

@@ -408,7 +408,7 @@ int tpmUnsealFile( char* fname, unsigned char** tss_data, int* tss_size,
 	}
 
 	/* Decode and decrypt the encrypted data */
-	EVP_CIPHER_CTX *ctx = NULL;
+	EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
 	EVP_DecryptInit(ctx, EVP_aes_256_cbc(), symKey, (unsigned char *)TPMSEAL_IV);
 
 	/* Create a base64 BIO to decode the encrypted data */

src/cmds/tpm_sealdata.c

@@ -343,7 +343,7 @@ int main(int argc, char **argv)
 	BIO_puts(bdata, TPMSEAL_ENC_STRING); 
 	bdata = BIO_push(b64, bdata);
 
-	EVP_CIPHER_CTX *ctx = NULL;
+	EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
 	EVP_EncryptInit(ctx, EVP_aes_256_cbc(), randKey, (unsigned char *)TPMSEAL_IV);
 
 	while ((lineLen = BIO_read(bin, line, sizeof(line))) > 0) {